Luxtron FOT Lab Kit - Fluoroptic Technology Overview

To Next Page

To Previous Page

Introduction

FOT Lab Kit User’s Manual 1-5

Fluoroptic

Technology Overview

The FOT Lab Kit uses LUXTRON’s patented Fluoroptic

technology,

based on a temperature sensitive phosphorescent sensor attached

to the end of an optical fiber. Pulses of light transmitted down the

fiber optic probe cause the sensor to be excited and fluoresce. The

DSP-based electronics of the FOT Lab Kit Instrument detect and

calculate the decay time of this fluorescence after each pulse. This

decay time varies precisely with the temperature of the sensor,

providing the basis for accurate temperature measurement. The

FOT Lab Kit Instrument achieves accuracy better than 0.5

C and a

measurement range of -100 to +330

Below is a plot representation of the method used to extract the

florescence decay time (τ) of the phosphor sensor. A mathematical

curve fit correlates individual data points with stored values of (τ).

The measured value of (τ) is then conditioned with the values in a

calibration table to determine temperature.

Figure 1-3 Plot Representation of LUXTRON’s Fluoroptic

Thermometry Technique

Time

Intensity

Fluorescent

Signal

Excitation

Light Pulse

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com